Circuitry of the Cardiovascular System Flashcards Preview

Physiology > Circuitry of the Cardiovascular System > Flashcards

Flashcards in Circuitry of the Cardiovascular System Deck (24)
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1
Q

The pulmonic circulation has a ____ (lower, same, higher) resistance, afterload, and stroke work compared to systemic circulation

A

Lower

2
Q

At rest, the cardiac output is ___ L/min

A

5L/min

Max CO = 20L/min (non-athlete)
Max CO = 30L/min (athlete)

3
Q

THe blood flow per 100g tissue is greatest in what organ?

A

Kidneys

4
Q

What is the formula for the CO

A

CO = HR x SV

CO = VR

5
Q

____ is the site of greatest resistance

A

arterioles

6
Q

This has the largest total cross-sectional area and the slowest blood flow velocity

A

capillaries

7
Q

___ and ____ control blood flow

A

metarterioles and pre-capillary sphincter

8
Q

_____ are called capacitance vessels since it has greater distensibility and compliance

A

Veins

9
Q

Another name for the right atrial pressure

A

Central venous pressure

10
Q

What is the cardiac output at rest?

A

5L/mon

11
Q

The maximum CO of a non-athlete

A

20L/min

12
Q

The maximum CO of a athlete

A

30L/min

13
Q

The CO of the L heart is also equal to the ____ blood flow

A

systemic blood flow

14
Q

The CO of the R heart is also equal to the ____ blood flow

A

pulmonary blood flow

15
Q

Contains the stressed volume

A

arteries

16
Q

the blood flowing here has a high pressure

A

arteries

17
Q

higher cross sectional area
lower blood flow velocity
gas exchange

A

capillaries

18
Q

____ control blood flow

A

metarterioles

pre-capillary sphincters

19
Q

how many percent of blood are found in the veins

A

64%

20
Q

____ are capacitance vessels

A

64%

21
Q

greater capacitance greater distensibility, greater compliance

A

veins

22
Q

area with the slowest blood flow velocity

A

capillaries

23
Q

The right atrial pressure is also called ____ pressure

A

central venous pressure

24
Q

the site at which the systolic pressure is highest

A

renal artery